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Chapter 28 Mid-term Review Classification and Arthropods

Chapter 28 Mid-term Review Classification and Arthropods

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Why is it necessary to have a system of classification for living things? It makes it easier to study them because we can use general descriptions to understand characteristics of organisms in the same group

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Page 1: Chapter 28 Mid-term Review Classification and Arthropods

Chapter 28 Mid-term Review

Classification and Arthropods

Page 2: Chapter 28 Mid-term Review Classification and Arthropods

List the 7 Taxa in descending order

• Kingdom• Phylum• Class• Order• Family • Genus• Species

Page 3: Chapter 28 Mid-term Review Classification and Arthropods

Why is it necessary to have a system of classification for living

things?

• It makes it easier to study them because we can use general descriptions to understand characteristics of organisms in the same group

Page 4: Chapter 28 Mid-term Review Classification and Arthropods

List as many general characteristics of arthropods as you can recall.

• Chitinous exoskeleton• Segmented bodies• Jointed appendages• Open circulatory systems• Ventral nerve cord• Well-developed senses

Page 5: Chapter 28 Mid-term Review Classification and Arthropods

List the 4 Classes of Arthropods

• Arachnida• Crustacea• Myriapods• Insecta

Page 6: Chapter 28 Mid-term Review Classification and Arthropods

General Description of Arachnids

• 2 main body segments – cephalothorax and abdomen

• Lack antennae, have pedipalps• Lack mandibles, have chelicerae• Use book lungs to breathe• Includes spiders and scorpions

Page 7: Chapter 28 Mid-term Review Classification and Arthropods

General Description of Crustaceans

• 2 main body segments• Exoskeletons contain calcium carbonate and

chitin• Usually aquatic; breathe using gills• 2 pairs of antenna• Includes crayfish, crabs, and shrimp

Page 8: Chapter 28 Mid-term Review Classification and Arthropods

General Description of Myriapods

• Have lots of segments• Use tracheal tubes to breathe• Includes centipedes and millipedes

Page 9: Chapter 28 Mid-term Review Classification and Arthropods

General Description of Insects

• 3 Main body segments – head, thorax, and abdomen

• One pair of antenna• Breathe with tracheal tubes• Very diverse; includes ants, flies, and beetles

Page 10: Chapter 28 Mid-term Review Classification and Arthropods

What are the two types of metamorphosis?

• Complete and incomplete

Page 11: Chapter 28 Mid-term Review Classification and Arthropods

List the 3 stages of incomplete metamorphosis

• Egg• Nymph• Adult

Page 12: Chapter 28 Mid-term Review Classification and Arthropods

List the 4 stages of complete metamorphosis

• Egg• Larvae• Pupa• Adult

Page 13: Chapter 28 Mid-term Review Classification and Arthropods

Vocabulary

• Molting • Simple eye• Compound eye• Antenna• Pedipalps• Book lungs• Tracheal tubes

Page 14: Chapter 28 Mid-term Review Classification and Arthropods

Vocabulary• Molting – replaces the old exoskeleton • Simple eye – eye with only one lens• Compound eye – eye with many lenses• Antenna – sensory structure responsible for

touch, taste, smell, and hearing• Pedipalps – arachnid appendage that’s like an

antenna and also holds food• Book lungs – respiratory structure of arachnids• Tracheal tubes – respiratory structure of insects